BCD Travel Services B.V., a global business travel management firm, recently disclosed a significant data security incident stemming from a third-party vulnerability within one of its applications. The breach occurred during a four-day window between ...
In November 2026, the French cooperative banking group Crédit Mutuel Arkéa fell victim to a sophisticated cyberattack that resulted in significant fraudulent transactions. Headquartered in Brittany, the institution confirmed that while the breach was ...
DigiCert, a major certificate authority, recently disclosed a significant data breach resulting from an infrastructure migration error that occurred in February 2025. During this migration, an internal business system previously protected by a virtual...
Mirae Asset Securities, South Korea’s largest brokerage, confirmed a significant data breach occurring between November 4 and 5, 2026. The incident involved unauthorized external access to two distinct systems: a mobile-web phone-authentication login ...
York University, a major Toronto-based institution, recently confirmed a significant cybersecurity incident involving the unauthorized theft of personal information. The breach was discovered on October 25, 2026, after an unauthorized actor gained acc...
In November 2026, Italian government officials and major infrastructure projects became the targets of significant cyber activity, illustrating the ongoing risks posed by digital extortion and politically motivated hacking. Italian Foreign Minister An...
Tradier Brokerage, an online broker-dealer headquartered in Charlotte, North Carolina, is currently navigating the aftermath of a significant data security incident that originated through a third-party service provider. On August 28, 2026, a targeted...
Del Monte Foods Corp. II Inc., a prominent food production and distribution company headquartered in Walnut Creek, California, recently experienced a significant data breach that has led to a widespread investigation and potential legal action. The se...
In October 2026, two Oklahoma-based organizations, ONEOK and Urologic Specialists of Oklahoma, were targeted by cybercriminals in separate incidents that resulted in significant data breaches and subsequent class action lawsuits. The breach at ONEOK o...
Amadeus IT Group, a major Spanish travel technology provider, experienced a significant data breach that impacted numerous global airlines over a three-year period between August 2023 and September 2026. The incident stemmed from unauthorized access t...
Cyber Security Case Studies has worked with a number of groups to develop these risk effect categories which represent a plain-english description of the impacts seen in public cyber events alongside their definition: